Occupational exposure to vapor, gas, dust, or fumes and chronic airflow limitation, COPD, and emphysema: the Swedish CArdioPulmonary BioImage Study (SCAPIS pilot)
Authors Torén K, Vikgren J, Olin A, Rosengren A, Bergström G, Brandberg J
Received 27 June 2017
Accepted for publication 7 September 2017
Published 29 November 2017 Volume 2017:12 Pages 3407—3413
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Charles Downs
Peer reviewer comments 2
Editor who approved publication: Dr Richard Russell
Kjell Torén,1 Jenny Vikgren,2 Anna-Carin Olin,1 Annika Rosengren,3 Göran Bergström,3 John Brandberg2
1Section of Occupational and Environmental Medicine, Institute of Medicine, Sahlgrenska Academy, 2Department of Radiology, Institute of Clinical Sciences, 3Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
Background: The aim of this study was to estimate the occupational burden of airflow limitation, chronic airflow limitation, COPD, and emphysema.
Materials and methods: Subjects aged 50–64 years (n=1,050) were investigated with forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC). Airflow limitation was defined as FEV1/FVC <0.7 before bronchodilation. Chronic airflow limitation was defined after bronchodilation either according to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) as FEV1/FVC <0.7 or according to the lower limit of normal (LLN) approach as FEV1/FVC < LLN. COPD was defined as chronic airflow limitation (GOLD) in combination with dyspnea, wheezing, or chronic bronchitis. Emphysema was classified according to findings from computed tomography of the lungs. Occupational exposure was defined as self-reported occupational exposure to vapor, gas, dust, or fumes (VGDF). Odds ratios (OR) were calculated in models adjusted for age, gender, and smoking; population-attributable fractions and 95% CI were also calculated.
Results: There were significant associations between occupational exposure to VGDF and COPD (OR 2.7, 95% CI 1.4–51), airflow limitation (OR 1.8, 95% CI 1.3–2.5), and emphysema (OR 1.8, 95% CI 1.1–3.1). The associations between occupational exposure to VGDF and chronic airflow limitation were weaker, and for the OR, the CIs included unity. The population-attributable fraction for occupational exposure to VGDF was 0.37 (95% CI 0.23–0.47) for COPD and 0.23 (95% CI 0.05–0.35) for emphysema.
Conclusion: The occupational burden of COPD and computed tomography–verified emphysema is substantial.
Keywords: work, occupation, obstructive airways disease, epidemiology, computed tomography
This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.Download Article [PDF] View Full Text [HTML][Machine readable]
Other articles by this author:
Validity of physician-diagnosed COPD in relation to spirometric definitions of COPD in a general population aged 50–64 years – the SCAPIS pilot study
Torén K, Murgia N, Olin AC, Hedner J, Brandberg J, Rosengren A, Bergström G
Published Date: 4 August 2017
Measures of bronchodilator response of FEV1, FVC and SVC in a Swedish general population sample aged 50–64 years, the SCAPIS Pilot Study
Torén K, Bake B, Olin A-C, Engström G, Blomberg A, Vikgren J, Hedner J, Brandberg J, Persson HL, Sköld CM, Rosengren A, Bergström G, Janson C
Published Date: 22 March 2017
Torén K, Olin AC, Lindberg A, Vikgren J, Schiöler L, Brandberg J, Johnsson Å, Engström G, Persson HL, Sköld M, Hedner J, Lindberg E, Malinovschi A, Piitulainen E, Wollmer P, Rosengren A, Janson C, Blomberg A, Bergström G
Published Date: 2 May 2016